Numerical and experimental study on combustion characteristics of boron-containing solid rocket scramjet

Jia Zeng; Guohui Wang; Hui Huang; Jian Fan; Haosu Wang

doi:10.1117/12.3032697

16 August 2024 Numerical and experimental study on combustion characteristics of boron-containing solid rocket scramjet

Jia Zeng, Guohui Wang, Hui Huang, Jian Fan, Haosu Wang

Proceedings Volume 13218, First Aerospace Frontiers Conference (AFC 2024); 132182F (2024) https://doi.org/10.1117/12.3032697
Event: First Aerospace Frontiers Conference (AFC 2024), 2024, Xi’an, China

Abstract

Solid rocket scramjet has become a potential choice for the development of future hypersonic vehicles. A boron-containing solid rocket scramjet based on central strut injection was proposed in this paper, and direct-connect experiments and numerical simulations were carried out to verify the feasibility and performance of the scramjet. The engine realized stable combustion in the ground experiments at flight conditions of Ma6 and Ma4, with the combustion efficiency of 81.7% and 70.3% respectively. And the simulation results show that: (1)The simulation results were in agreement with experimental data, with the pressure error less than 4%. (2)The central strut injection mode can effectively increased combustion stability, avoided momentum loss and improved the combustion efficiency. However, the low combustion efficiency of B particles was still the key factor limiting engine performance; (3)The combined injection mode effectively improved the combustion efficiency and increased the gain thrust of the scramjet. And with the rose of Mach number, the increase amplitude of the particles combustion efficiency and the thrust improved, which were 44.8% and 12.8% at Ma 6, respectively.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jia Zeng, Guohui Wang, Hui Huang, Jian Fan, and Haosu Wang "Numerical and experimental study on combustion characteristics of boron-containing solid rocket scramjet", Proc. SPIE 13218, First Aerospace Frontiers Conference (AFC 2024), 132182F (16 August 2024); https://doi.org/10.1117/12.3032697

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